Fountain-pen.



J. J; MEAD. FOUNTAIN PEN.

APPLICATION FILED NOV. 2, 1907.

Patented Oct. 13, 1908 UNITED STATES PATENT onnion.

JACOB J; MEAD, OF NEW YORK, N. Y. ASSIGNOR T'O MEAD FOUNTAIN PEN (30., A CORPORATION OF NEW YORK.

Speciflcation of LettersPatent.

' Patented Oct. 13, 1908.

Application filed November 2, 1907. seminal 400,413.

To all whom itv may concern: W

Be it known that I, Jnoon J. MEAD, a citi zen of the United States, residing at the borough of Brooklyn, in the city of New York,

county of Kings, and State of New York,

- have inventedcertain new andusefulImas self filling wherein means forming a part v tube attached thereto.

of the pen, are provided to draw ink into the pen barrel. r v

In the ordinary, well knownstyle of fountain pen, tofill and refill same it is necessary to remove a screw threaded sto per for the barrel, and inject ink into said liar-rel, by means of a compressible rubber bulb, and a filling This style of pen has the ob? ection, that in filling and re-filhng considera )le, inconvenience results, and the ink is passed directly to thc barrel so that the ink in the pen and in -the' feeder is allowed to remain undisturbeg In the type of self-filling pens now in use, it has been a general practice to avoid the inconvenience of the use of a separate filler, to place a com ressible rubber receptacle within the pen iarrel, and in communication with the ink feeding attachments, and provide exteriorly exposed means whereby the receptacle may be compressed to expel ink or air therefrom, through the feeder and pen and by immersing the pen and feeder in-ink, draw ink through the same duct or ducts into this receptacle. Thistype of pen prevents the clog ing of the pen point and of the feeder, but I flexible rubber will not retain its elasticity for any considerable time, and when ex osed' to the acids contained in inks, its on inary life is mate'riall shortened. A further disadvantage of tlns type is that the capacity of the receptacle is smallcompa-red to the size of thebarrel necessary to retain same.

The main object of my invention is to proj vide a fountain pen whichmay be emptied or filled through theducts of the feeder, thus preserving the advantages incident to the passage of ink through such ducts; and

wherein the refilling means positionedwith in the barrel, may be made of non-flexible substance, thus preventing its being ren- 'pelled from the barrel and fresh in ms the disadvantage that dered inoperative through repeated use, or the action of the airor ink thereon.

A further object is to provide a pen of this character wherein the capacity of the barrel will not be materially diminished by the presence therein of the automatic filling mechanism.

A still further object is to provide a pen of this character wherein the various parts will be so nested as to permit their being all contained within a barrel of ordinar length, while being quickly brought into t e o erative position when it is desired to rethe pen, and restored to normal after it is filled,

without expelling ink from the barrel.

A still further object is to provide a foun tain pen wherein the ink or air may be exdrawn thcreint-o by means of a reciprocating piston contained within the barrel, in a manner to give the same appearance to the pen irrespective of the position of the plunger. And a still further object is to provide a self filling fountain pen of simple construction, which will be ")ositive in its action in expelling ink and air from, and drawing ink into the barrel, which will be simple and quick in its operation, and which cannot be readily gotten out of order. 1 v The invention consists primarily in a fountain pen comprising a barrel, the combination with a feeder and a point, of a piston fitted to and mounted in said barrel, a stem whereby said piston ma be reciprocated and means exposed exterior y of the pen whereb said stem may be operated; and in sue 1 other novel features of construction and combiuation'of-parts as are hereinafter set forth and described, and more particularly pointed out in the claims hereto appended.

Referring to the drawings: Figure 1 is a side elevation of the pen with the operating handle drawn out preparatory to the expulsion of ink -sind air therefrom, the barrel being broken away to show the piston and pis ton stein. Fig. 2 is a detail view of the piston, and its stem, and the operating handle in cross section, and Fig. 3 is a cross section of the pen showing the various parts nested after the barrel is filled.

Like letters refer to like parts throughout the several views.

In the embodiment of my invention shown in the accompanying drawings, a indicates a ton orplunger e, which may be made en barrel, 7) the pen point, e the feeder, and

the .cap'. The parts 5, c, and (5, may be of any desired construction and arrangement, my invention requiring merely a modification of the barrel to adapt it to the purposes of the invention. The cap (1 is vented in the usual and well known manner through the opening (1.

The barrel a differs from the ordinary fountain pen barrel in that it is. open at both ends, at one end to receive the feeder c, and. pen 6, and at the other end to allow clearance tor the operation of the refilling mechanism. The inside of this barrel is preferaliily cylindrical and finished to remove irregularities, a finish which may be imparted thereto in the molding process. Fitted to, 'and seated within said pen barrel, is a reciprocating pis of cork or other suitable material, which piston plunger is adapted to be reciprocated to eX- pel ink or air from the barrel, or to create a vacuum therein, to draw fresh ink thereinto through the ducts in the feeder c.

The piston .or plunger e carries centrally thereof a stem f having a straight longitudinal slot f therein and lateral extensions f 2 adjacent to each end of said slot forming therewith one member of Passing through the slotf so as to act as a guide therefor, and as a stop for retaining the piston or plunger in the barrel and limiting the quantity of its movement in filling the pen, is a pin 9 the opposite ends of which pass tl'irough and are flush with the outer surrace of the barrel a.

Mounted upon the stem 1 is an operating sleeve h the lower end h of which conforms in dimensions to the bore of the barrel u, havinga tight sliding fit therewith; and the top 7L2 of which is finished so as to present a shoulder 72 to the top of the barrel and have such outside dimensions as to conform to those of the barrel, and when the refilling mechanism is nested, have the appearance of being a part of said barrel. The outer end of said sleeve isshown as being open to provide aproper a bayonet join t.

. vent thereto and a separate vent y" alined the slot f is also provided, the said sleeve being of a length. to cause the end of the sternf to come substantially'ilush with this end of the sleeve to close it, when the pen per branch slots f is filled, and the parts are restored to normal.

Adjacent to the lower end of the part it of the sleeve h, is a pin 2' which passes through the slotf and is adapted to pass into the up The function of this pin '2, is notonly to retain the sleeve in relation to the barrel, but to permit the sleeve to be moved to bring said. pin into such relation to the slots f as to permit the plunger e being operated thereby, but also to permit the said s eeve when the plunger is drawn out to the full extent, to be slid upon the stem f to nest the parts.

.ment, and also brings the parts to a eoenee It will be observed that the construction heretofore described is such as to permit the various parts to be made of material which will not be materially affected by wear, or by acids in the ink, and that the various parts may be inexpensively and accurately produced.

The operation of the herein described fountain pen is substantially as follows. The various parts being in the positions shown in Fig. 2, and it being desired to refill the pen, the oart 7L2 of the sleeve 71 exposed exteriorly of the pen, is used to draw the sleeve outwardly, the lower slots f 2 passing from the pin 5,? and the pin moving in the slot f to permit said movement. When the said sleeve h is drawn out to its full extent, as shown in Fig. 1, it is turned so as to cause the said nin i to pass into the upper slots f thus locking said sleeve h. in relation to the stemf. The sleeve 7t is then forced inward, carrying with it the stem f and the piston or plunger 0, which latter will expel any ink, and all the air, remaining in the barrel (1, such matter being expelled throu h the duct in the feeder 0, thus serving to dlcansc the said feeder and the pen itself. The )en is then dipped in ink, so as to submerge the open end of the said duct of the feeder, and the sleeve it again drawn outwardly, this time bringing the stemfand the piston or plunger 11 with it, thus creating a vacuum in the barrel (1/ and hill to flow through the duct in the feeder, to said barrel. This restores the parts to the position shown in Fig. 1, the barrel (L, however, being filled with. ink. During this process, the pin g prevents the stemf and the plunger e from turning, thus guiding its movestop at the proper point to not only prevent the en tirewithdrawal of the piston or plunger (2, but also position these parts so as to permit the nesting thereof in a manner to preserve the neat appearance of the )en. The pen having been iilled described, the sleeve I1. is turned in the opposite direction disengaging pin ifroiu the slotsf", and bringing it into alinenient with the slotf. The said sleeve h is then again pressed inwardly, the pin 1'. moving in th" 051f, thus causing the sleeve to move u the stem] having no effect upon the plung- The part It bein of substantially the same dimensions as he inner dimensions of the barrel (1., enters same with a sufficiently tight fit to hold the entire sleeve it firmly and the upper part of the stem f is permitted to pass into the said sleeve, any air therein being discharged from the open top thereof and the air between the piston and the barrel top discharging through the vent y'. The top of the stem is so finished that when it comes substantially flush with the end of said sleeve, it serves to close it and give a neat finish thereto. The plunger 0 being a fairly tight fit, the ink is not permitted nection between the removable end of the barbarrel etween said BEST to esca e around same plun ger and the'feeder. While thespace-is not as great as'in the ordinary fountain en, nevertheless, the" gain. in the diameter 0 the bore is suflicient to mate-' rially increase the capacity over that of self g pen wherein a separate receptacle for the ink is seated within the barrel,

It will be observed that in a pen con-- structed as described, the screw threaded conrel containing the pen and'feeder, and the barrel pro. er, is dispensed with, thus avoid-- 'ing the di culties attendant upon securinga good, ink tight joint atthis point. The 'pl'un-- ger e end k and head h give an ample packmg to the only jointthrough which mk could escape, there being no screwj oints in the en-' tire device. Itwill also be observed that I I am aware that self fountain ens.

are now in use, and I do not intend to c aim such 'a device broadly, I believe however, that by providin and arranging all the parts substantially as erein shown and described,

I 7 new and useful results are attained.

While I have shown a construction oispen which has been fpund in use to hays sati actory results, I. de. not, nevertheless, wish to limit the invention to: the precise details of construction the drawin such be-' mg capable'of adapt t e mechan-- isms to differ and styles of pens avmg described thsvinventionyfwhat 'I claimas newa'nd desire to haveprotected by 40 l I y '1'. Inafountam pen,thej combination with a barrel, a feeder and a point, of a iston fit-- Letters-Patent is ted to and-mounted in said barre aste'm 7' having a longitudinal slot therein and branchslotsfor "therewith-a part-of'a bayonet joint where y said piston maybe recigrmv cate and a sleeve carrying a in seats in stud longltudinalslot andvadapted to enter saidbranch slots, mounted .on said stem and 5e havinga lengitudinalslot therein an branch "slots form;

en," whereby said H therewith apart of abayonet oint where 'ysaid piston maybe reciprocated, a pin ided, and the extent of its-reciprocation is said longitudinal slot, and adapted to enter 7 sad branchslots, mounted on said sleeve and from that part ofthe with the direct reciprocating movement of the iston' or plunger e, the 'pen maybe quic yrefilled,

2 slots "forming,

, of substantially the same dimensions as th with said stem or passing through said s 0t and- .in the presence 'of two earned by said barrel whereby said tem is. v

mited, and a'sleeve carrying-a p n seated in eirposedexteribrly of the pen wh'erebysaid independently thereof I 7 3. In a fountain pen, thefcombmation of a .ba'rrel,a feeder and a oint, of a piston fitted tofand mounted in sai barrel, a-stem having a longitudinal slot therein, and branch slots idrming therewitha part of a bayonet joint,

whereby'said piston may be reciprocated, a

sleeve mounted on said stem comprising one part of-substantially, the same dimensions as '65 sleeve may be reclprocated with said stem or the .bore of said barrel and an enlarged head,

end of saidfbarr'el is formed, and a pin carried by said sleeve and passing throu h said slot, whereby said sleeve is capable 0 being reciprocated with said stem or independently thereof. a 4. In a fountain pen, the combination with a barrel, a feeder and a point, of a piston fitted to and mounted in said barrel, a stem having a longitudinal slot therem,- and branch slots forming therewith a' part of a bayonet joint, whereby said piston may be reciprocated, a pinassing through said slot and carriedb said arrel, whereby said stem is ided an the extent of'its reciprocation is "mited, a sleeve mounted on said stem comprising one part of substantially the whereby a shoulder adapted to engage the same dimensions as the bore of said barrel,

and an enlarged head, whereby a. shoulder adapted to engagethe endof said barrel is.

formed, and a pin carried by said sleeve and passing through said slot, whereby said sleeve may be r'eciprocated' with said stem or independently thereof. 1

. 5:. In-a iount 'n pen, the combination with a be el, a feeder and a point, of a piston stantia flush with t e end of said stem, mounte on said stem, comprising one part es bore of said barrel,--Ia d an enlarged head,

whereby a shoulder adapted totengage the 1 end of said barrel is formed, and a in ca by'said sleeve and passing throug said slot whereb with said stem or independently thereof.

. In witness whereof I n my signature this 25th day of October, 1907 ,v

Witnesses:

' GEORGE M00;

'13. T. Warrwoarn said sleeve may be reciprocated fitte f'to and! mounted in said barrel,,a stem assing through said slot and JAcosigq'i'irin'n 1 and ads ted when the en is filled to be sub: 

